Re: diff: tcp ack improvement

2021-02-08 Thread Jan Klemkow
On Mon, Feb 08, 2021 at 03:42:54PM +0100, Alexander Bluhm wrote: > On Wed, Feb 03, 2021 at 11:20:04AM +0100, Claudio Jeker wrote: > > Just commit it. OK claudio@ > > If people see problems we can back it out again. > > This has huge impact on TCP performance. > >

Re: diff: tcp ack improvement

2021-02-08 Thread Theo de Raadt
Claudio Jeker wrote: > On Mon, Feb 08, 2021 at 07:46:46PM +0100, Alexander Bluhm wrote: > > On Mon, Feb 08, 2021 at 07:03:59PM +0100, Jan Klemkow wrote: > > > On Mon, Feb 08, 2021 at 03:42:54PM +0100, Alexander Bluhm wrote: > > > > On Wed, Feb 03, 2021 at 11:20:04AM +0100, Claudio Jeker wrote: >

Re: diff: tcp ack improvement

2021-02-08 Thread Claudio Jeker
On Mon, Feb 08, 2021 at 07:46:46PM +0100, Alexander Bluhm wrote: > On Mon, Feb 08, 2021 at 07:03:59PM +0100, Jan Klemkow wrote: > > On Mon, Feb 08, 2021 at 03:42:54PM +0100, Alexander Bluhm wrote: > > > On Wed, Feb 03, 2021 at 11:20:04AM +0100, Claudio Jeker wrote: > > > > Just commit it. OK

Re: diff: tcp ack improvement

2021-02-08 Thread Alexander Bluhm
On Mon, Feb 08, 2021 at 07:03:59PM +0100, Jan Klemkow wrote: > On Mon, Feb 08, 2021 at 03:42:54PM +0100, Alexander Bluhm wrote: > > On Wed, Feb 03, 2021 at 11:20:04AM +0100, Claudio Jeker wrote: > > > Just commit it. OK claudio@ > > > If people see problems we can back it out again. > > > > This

Re: diff: tcp ack improvement

2021-02-08 Thread Theo de Raadt
Yes it is unacceptable. Alexander Bluhm wrote: > On Wed, Feb 03, 2021 at 11:20:04AM +0100, Claudio Jeker wrote: > > Just commit it. OK claudio@ > > If people see problems we can back it out again. > > This has huge impact on TCP performance. > >

Re: diff: tcp ack improvement

2021-02-08 Thread Alexander Bluhm
On Wed, Feb 03, 2021 at 11:20:04AM +0100, Claudio Jeker wrote: > Just commit it. OK claudio@ > If people see problems we can back it out again. This has huge impact on TCP performance. http://bluhm.genua.de/perform/results/2021-02-07T00%3A01%3A40Z/perform.html For a single TCP connection

Re: diff: tcp ack improvement

2021-02-03 Thread Jan Klemkow
On Tue, Jan 05, 2021 at 10:30:33AM +0100, Claudio Jeker wrote: > On Tue, Jan 05, 2021 at 10:16:04AM +0100, Jan Klemkow wrote: > > On Wed, Dec 23, 2020 at 11:59:13AM +, Stuart Henderson wrote: > > > On 2020/12/17 20:50, Jan Klemkow wrote: > > > > ping > > > > > > > > On Fri, Nov 06, 2020 at

Re: diff: tcp ack improvement

2021-02-03 Thread Claudio Jeker
On Wed, Feb 03, 2021 at 10:56:38AM +0100, Jan Klemkow wrote: > On Tue, Jan 05, 2021 at 10:30:33AM +0100, Claudio Jeker wrote: > > On Tue, Jan 05, 2021 at 10:16:04AM +0100, Jan Klemkow wrote: > > > On Wed, Dec 23, 2020 at 11:59:13AM +, Stuart Henderson wrote: > > > > On 2020/12/17 20:50, Jan

Re: diff: tcp ack improvement

2021-01-05 Thread Jan Klemkow
On Wed, Dec 23, 2020 at 11:59:13AM +, Stuart Henderson wrote: > On 2020/12/17 20:50, Jan Klemkow wrote: > > ping > > > > On Fri, Nov 06, 2020 at 01:10:52AM +0100, Jan Klemkow wrote: > > > bluhm and I make some network performance measurements and kernel > > > profiling. > > I've been running

Re: diff: tcp ack improvement

2021-01-05 Thread Claudio Jeker
On Tue, Jan 05, 2021 at 10:16:04AM +0100, Jan Klemkow wrote: > On Wed, Dec 23, 2020 at 11:59:13AM +, Stuart Henderson wrote: > > On 2020/12/17 20:50, Jan Klemkow wrote: > > > ping > > > > > > On Fri, Nov 06, 2020 at 01:10:52AM +0100, Jan Klemkow wrote: > > > > bluhm and I make some network

Re: diff: tcp ack improvement

2020-12-23 Thread Stuart Henderson
On 2020/12/17 20:50, Jan Klemkow wrote: > ping > > On Fri, Nov 06, 2020 at 01:10:52AM +0100, Jan Klemkow wrote: > > Hi, > > > > bluhm and I make some network performance measurements and kernel > > profiling. I've been running this on my workstation since you sent it out - lots of long-running

Re: diff: tcp ack improvement

2020-12-17 Thread Jan Klemkow
ping On Fri, Nov 06, 2020 at 01:10:52AM +0100, Jan Klemkow wrote: > Hi, > > bluhm and I make some network performance measurements and kernel > profiling. > > Setup:Linux (iperf) -10gbit-> OpenBSD (relayd) -10gbit-> Linux (iperf) > > We figured out, that the kernel uses a huge amount

Re: diff: tcp ack improvement

2020-11-06 Thread Jan Klemkow
On Fri, Nov 06, 2020 at 08:03:36AM +0100, Otto Moerbeek wrote: > On Fri, Nov 06, 2020 at 01:10:52AM +0100, Jan Klemkow wrote: > > bluhm and I make some network performance measurements and kernel > > profiling. > > > > Setup: Linux (iperf) -10gbit-> OpenBSD (relayd) -10gbit-> Linux (iperf) >

Re: diff: tcp ack improvement

2020-11-05 Thread Otto Moerbeek
On Fri, Nov 06, 2020 at 01:10:52AM +0100, Jan Klemkow wrote: > Hi, > > bluhm and I make some network performance measurements and kernel > profiling. > > Setup:Linux (iperf) -10gbit-> OpenBSD (relayd) -10gbit-> Linux (iperf) > > We figured out, that the kernel uses a huge amount of

diff: tcp ack improvement

2020-11-05 Thread Jan Klemkow
Hi, bluhm and I make some network performance measurements and kernel profiling. Setup: Linux (iperf) -10gbit-> OpenBSD (relayd) -10gbit-> Linux (iperf) We figured out, that the kernel uses a huge amount of processing time for sending ACKs to the sender on the receiving interface. After